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Percents & Solutions

You have a 70% dxtrose solution. Hom many grams in: 50ml of solution, 75ml of solution, and 20ml of solution? Please expain step by step how to get the answer.

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by: Anonymous

Set this up as a proportion:
70% is 70 grams in 100ml.
70g / 100ml = X / 50ml.
Cross multiply 70 by 50 to get 3500, then divide by 100 to get 35.
X = 35g
(or 35%) for 50ml.

Use the same formula to solve for the other amounts.

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